package com.aop;


import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.*;
import org.springframework.stereotype.Component;

@Aspect//当前类设置为切面
@Component
public class AnnoAdvice {
    @Pointcut("execution(* com.dao.impl.UserDaoImpl.*(..))")//指定要切的包
    public void pointcut(){

    }
    @Before("pointcut()")
    public void before(JoinPoint joinPoint){
        System.out.println("这是前置通知");
        System.out.println("目标类是:"+joinPoint.getTarget());
        System.out.println("被织入增强处理的目标方法为:"+joinPoint.getSignature().getName());

    }
    @After("pointcut()")
    public void afterReturning(JoinPoint joinPoint){
        System.out.println("这是返回通知(方法不出现一场时调用)!");
        System.out.println("被织入增强处理的目标方法为:"+joinPoint.getSignature().getName());
    }
    @Around("pointcut()")
    public Object around(ProceedingJoinPoint point) throws Throwable{
        System.out.println("这是环绕通知之前的部分！");
        Object object = point.proceed();
        System.out.println("这是环绕通知之后的部分！");
        return object;
    }
//    @AfterThrowing
//    public void afterThrowing(){
//        System.out.println("这是异常通知");
//    }
    @After("pointcut()")
    public void after(){
        System.out.println("这是后置通知！");
    }
}